The following is the official canvassing of votes by the Congress of the Philippines for the 2010 Philippine presidential and vice presidential election. The canvassing, originally scheduled to start on May 31, started on May 25, 2010, and ended on June 9, 2010. The Congress is mandated to declare a winner 30 days after the elections (June 9). Process After voters had finished voting, the counting machines will then count the votes received by each candidate in each position. For positions elected on a national basis (president, vice president, senators and party-list representatives), the counting machine will then print an election return for that precinct, and will transmit the results to the municipal/city board of canvassers, Congress, Commission on Elections, the citizen's arm authorized by the commission, political parties, and others. The city or municipality will then tally the votes for all positions and will issue two documents at its conclusion: a statement of votes where the votes obtained by candidates in each precinct in a city/municipality is stated; and a certificate of canvass (COC), a document in electronic and printed form containing the total votes in figures obtained by each candidate in the city or municipality. The city or municipal COC will either be sent electronically to Congress (if the city is an Independent city with its own legislative district) or to the provincial board of canvassers in which the process is repeated; this time the provincial COC will be sent to Congress. Congress, sitting as the National Board of Canvassers, will canvass the votes to determine who among the candidates are elected president and vice president. In theory, all of the votes from the election returns when added must be equal to the votes canvassed by Congress coming from the city/provincial COCs. Members of the canvassing committee Instead of the whole Congress canvassing the votes, a committee comprised evenly between the Senate and the House of Representatives will canvass the votes at the Batasang Pambansa Complex in Quezon City, the home of the House of Representatives. The Senate President and the Speaker will co-chair the proceedings; previously, the majority leaders of both houses played this role. House Speaker Prospero Nograles announced the composition of the House delegation on May 21, as Senate Majority Floor Leader Juan Miguel Zubiri announced theirs on May 24. Members of Congress who ran for president (Noynoy Aquino, Richard Gordon, Jamby Madrigal, and Manny